Universal joint.



H. VANDERBEEK.

UNIVERSAL JOINTIV APPLICATION HLBD APR.29,1908.

927,087. Patented July 6, 1909.

www mgm HERBERT VANDERBEEK, OF HARTFORD,A CONNECTICUT.

i UNIVERSAL JOINT.

speciacetion of Letters Patent.

Patented July 6,1909.

Application ined April 29, 190s. serial No. 429,815.

To all whom it may concern:

Be it known that I, HERBERT VANDERBEEK, a citizen of the United States, and a resident of Hartford, in the county of Hartford and State of Connecticut, have-invented a new and Improved Universal Joint, of which the following is a specification.

My invention relates to the class of devices named, and the object of the invention is to provide a device of this class having nuinei'ous features of advantage and utility.

One forni of device in the use of which these objects may be attained is illustrated iii the accompanying drawings, iii which- Figure 1 is a side view of a joint embody ing my invention. Fig. 2 is a view in transverse section through the device on a plane indicated by the line A--A of Fig. 1. Fig. 3 is a View partially in longitudinal section through the device on plane denoted by line 2-2 of Fig. 2. i Fig. 4 is a View partially in longitudinal section through the device on a plane .at right-angles to the plane of view of Fig. 3, and denoted by line 3-3 of Fig. 2. Fig. 5 illustrates the several parts disconnected but arranged to convey an idea of their final position.

In the accompanying drawings the numer- Y als 5 and 6 denote -coupling heads arranged to be operatively connected. These may form the ends of two` shaft sections to be united by the joint, or may be constructed for attachment to each of the shaft sections, and may be of any desired form and material. Each of the heads or shaft sections have jaws 7 and 8` arranged to straddle a transmission block 9. The' heads or ends of the shaft sections preferably have recesses 1l and 12 formed between the jaws, and while these recesses are not absolutely essential, yet they provideV means forclcsely assembling the art's.

' The transmission block is preferably constructed in generally cubical form and has a neck 13y with a threaded opening. Said block also has transverse pin holes 14 and 15. These holes are formed with their axes in the saine plane and both extend com letel through the block from side to side.

groove 16 is formed in the neck 13 for the reception of a retainer 17, which in the form herein shown is that of a springfhaving an end 18 adapted to be passed into a hole 19 in the groove 16 and also intoa hole 20 in a lock 21.

The lock 21 is in the form of a screw having a recess 23 forming a lip 24 for a purpose to be hereinafter described. A slot 2 5 is formed in the lock as a means of turning it, this lock, as shown, being screw-threaded to titytlie screwthreaded opening in the neck 18. It will be understood, however, that this forni of enga in means between the lock and transmission block, and also the form vof retainer for the lock are not essential, as various constructions accomplishing the desired result may be had without departing from the scope or intent of the invention.

Lach of the jaws, 7 and 8 are provided with openings 7 8 whichform journal bearings for the portions of the pins projecting from the transmission block', and the jaws may be hardened to afford durable wearing surfaces with said pins, or this wearing surface may be provided in any other suitable manner. Interlocking connecting pins are employed for uniting the transn'iission block and each of theheads or ends of the shaft sections. These include a pin 27 which extends entirely through the transmission block 9, the ends;` of the pin restingwithin the openings iii"the jaws of one of the heads, as arranged herein, this pin engaging within the ope1iings-`7 in the head 5. A recess 28 is formed between the ends of the pin for the reception of the ends 29 of each of the sections of the coperating pin 30.

The coperating pin is formed in sections, the ends 29 of which nearly, if not quite, meet within the recess 28. Each of said sections is provided with means to receive the lip 24 on the lock 21, iii the form of construction herein shown the sections 30 of one pin having grooves 31, and the recess 28 -being enlarged as at 32.

It will be observed that my invention pro-- ,plishing this result may be employed, that herein shown proving to answer the 'requirements. By the method of interlocking said pins I prevent a radial displacement of pin 27 or a rotation, with relation to block 9, of said pin or of either section of the cooperatiio ing pin, and the lock 21 acts only as means to prevent the accidental radial displacement of sections of the coperating pm.

While I have shown and described herein one pin extending completely through the transmission block and into the jaws such construction is not essential to the invention, as both of the pins may be sectional if desired. There being no particular strain uponthe pins tending to` remove them from' their sockets, a lock having` any means sufticient to retain them in osition against accidental displacement will come within the intent of the invention.

I claim-l 1. Two members having jaws, a single piece transmission block located between the jaws on each member, interlocking pins slidable in the block to connect the parts, one of said pins loekinor the other against end- Wise movement, and each of the pins securing the other against rotation with relation to said block, and means for retaining the pins in position. v

2. Two members'each having jaws, a single piece transmission block located between the jaws, pins of equal diameter located in said block and with their projectin ends engaging said jaws, saidiins being s idable to permit assembling, an a lock projecting into the block, said parts having an interengaging li and groove to prevent displacement ot said pins.

3. Two members havin" jaws, a one-piece transmission block located between the jaws on each member, interlocking pins of equal diameter borne by said block and slidable to unite the connected members thereto, and a locking member for retaining `a plural number of pins in position.

HERBERT VANDERBEEK. Witnesses:

ARTHUR B. JENKINS, L. E. BERKovrroH. 

